1 |
greg |
1.1 |
#ifndef lint |
2 |
greg |
2.10 |
static const char RCSid[] = "$Id: protate.c,v 2.9 2004/03/28 20:33:14 schorsch Exp $"; |
3 |
greg |
1.1 |
#endif |
4 |
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/* |
5 |
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* prot.c - program to rotate picture file 90 degrees clockwise. |
6 |
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* |
7 |
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* 2/26/88 |
8 |
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*/ |
9 |
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10 |
greg |
1.7 |
#include "standard.h" |
11 |
greg |
1.1 |
|
12 |
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#include "color.h" |
13 |
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14 |
greg |
2.7 |
#include <time.h> |
15 |
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16 |
greg |
1.9 |
#include "resolu.h" |
17 |
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18 |
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int order; /* input scanline order */ |
19 |
greg |
1.1 |
int xres, yres; /* input resolution */ |
20 |
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21 |
greg |
1.9 |
int correctorder = 0; /* order correction? */ |
22 |
gwlarson |
2.5 |
int ccw = 0; /* rotate CCW? */ |
23 |
greg |
1.9 |
|
24 |
greg |
2.8 |
#ifdef SMLMEM |
25 |
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char buf[1<<20]; /* output buffer */ |
26 |
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#else |
27 |
greg |
2.2 |
char buf[1<<22]; /* output buffer */ |
28 |
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#endif |
29 |
greg |
1.1 |
|
30 |
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int nrows; /* number of rows output at once */ |
31 |
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32 |
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#define scanbar ((COLR *)buf) |
33 |
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34 |
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char *progname; |
35 |
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36 |
gwlarson |
2.5 |
short ordertab[4][2] = { |
37 |
greg |
2.10 |
{0,0}, {XDECR,XDECR|YDECR}, {XDECR|YDECR,YDECR}, {YDECR,XDECR} |
38 |
gwlarson |
2.5 |
}; |
39 |
greg |
1.1 |
|
40 |
greg |
2.10 |
|
41 |
schorsch |
2.9 |
static int neworder(void); |
42 |
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static void rotatecw(FILE *fp); |
43 |
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static void rotateccw(FILE *fp); |
44 |
greg |
1.8 |
|
45 |
schorsch |
2.9 |
|
46 |
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47 |
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static int |
48 |
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neworder(void) /* return corrected order */ |
49 |
gwlarson |
2.5 |
{ |
50 |
greg |
2.10 |
static short ordercw[8]; |
51 |
gwlarson |
2.5 |
register int i; |
52 |
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53 |
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if (correctorder) |
54 |
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return(order); |
55 |
greg |
2.10 |
if (!ordercw[0]) { |
56 |
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ordercw[YMAJOR|YDECR] = 0; |
57 |
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ordercw[0] = YMAJOR|XDECR; |
58 |
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ordercw[YMAJOR|XDECR] = XDECR|YDECR; |
59 |
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ordercw[XDECR|YDECR] = YMAJOR|YDECR; |
60 |
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ordercw[YMAJOR|XDECR|YDECR] = XDECR; |
61 |
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ordercw[XDECR] = YMAJOR; |
62 |
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ordercw[YMAJOR] = YDECR; |
63 |
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ordercw[YDECR] = YMAJOR|XDECR|YDECR; |
64 |
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} |
65 |
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if (!ccw) |
66 |
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return(ordercw[order]); |
67 |
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for (i = 8; i--; ) |
68 |
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if (ordercw[i] == order) |
69 |
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return(i); |
70 |
gwlarson |
2.5 |
fputs("Order botch!\n", stderr); |
71 |
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exit(2); |
72 |
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} |
73 |
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74 |
schorsch |
2.9 |
int |
75 |
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main( |
76 |
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int argc, |
77 |
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char *argv[] |
78 |
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) |
79 |
greg |
1.1 |
{ |
80 |
greg |
2.4 |
static char picfmt[LPICFMT+1] = PICFMT; |
81 |
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int rval; |
82 |
greg |
1.1 |
FILE *fin; |
83 |
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84 |
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progname = argv[0]; |
85 |
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86 |
gwlarson |
2.5 |
while (argc > 2 && argv[1][0] == '-') { |
87 |
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switch (argv[1][1]) { |
88 |
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case 'c': |
89 |
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correctorder = 1; |
90 |
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break; |
91 |
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case 'r': |
92 |
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ccw = 1; |
93 |
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break; |
94 |
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default: |
95 |
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goto userr; |
96 |
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} |
97 |
greg |
1.9 |
argc--; argv++; |
98 |
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} |
99 |
gwlarson |
2.5 |
if (argc != 2 && argc != 3) |
100 |
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goto userr; |
101 |
greg |
1.1 |
if ((fin = fopen(argv[1], "r")) == NULL) { |
102 |
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fprintf(stderr, "%s: cannot open\n", argv[1]); |
103 |
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exit(1); |
104 |
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} |
105 |
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if (argc == 3 && freopen(argv[2], "w", stdout) == NULL) { |
106 |
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fprintf(stderr, "%s: cannot open\n", argv[2]); |
107 |
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exit(1); |
108 |
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} |
109 |
greg |
1.6 |
/* transfer header */ |
110 |
greg |
2.4 |
if ((rval = checkheader(fin, picfmt, stdout)) < 0) { |
111 |
greg |
1.9 |
fprintf(stderr, "%s: not a Radiance picture\n", progname); |
112 |
greg |
1.8 |
exit(1); |
113 |
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} |
114 |
greg |
2.4 |
if (rval) |
115 |
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fputformat(picfmt, stdout); |
116 |
greg |
1.1 |
/* add new header info. */ |
117 |
gwlarson |
2.5 |
fputs(progname, stdout); |
118 |
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if (ccw) fputs(" -r", stdout); |
119 |
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if (correctorder) fputs(" -c", stdout); |
120 |
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fputs("\n\n", stdout); |
121 |
greg |
1.1 |
/* get picture size */ |
122 |
greg |
1.9 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
123 |
greg |
1.1 |
fprintf(stderr, "%s: bad picture size\n", progname); |
124 |
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exit(1); |
125 |
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} |
126 |
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/* write new picture size */ |
127 |
greg |
1.9 |
fputresolu(neworder(), yres, xres, stdout); |
128 |
greg |
1.1 |
/* compute buffer capacity */ |
129 |
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nrows = sizeof(buf)/sizeof(COLR)/yres; |
130 |
gwlarson |
2.5 |
if (ccw) /* rotate the image */ |
131 |
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rotateccw(fin); |
132 |
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else |
133 |
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rotatecw(fin); |
134 |
greg |
1.1 |
exit(0); |
135 |
gwlarson |
2.5 |
userr: |
136 |
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fprintf(stderr, "Usage: %s [-r][-c] infile [outfile]\n", progname); |
137 |
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exit(1); |
138 |
greg |
1.1 |
} |
139 |
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140 |
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141 |
schorsch |
2.9 |
static void |
142 |
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rotatecw( /* rotate picture clockwise */ |
143 |
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FILE *fp |
144 |
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) |
145 |
greg |
1.1 |
{ |
146 |
greg |
1.5 |
register COLR *inln; |
147 |
greg |
1.1 |
register int xoff, inx, iny; |
148 |
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long start, ftell(); |
149 |
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150 |
greg |
1.5 |
if ((inln = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
151 |
greg |
1.1 |
fprintf(stderr, "%s: out of memory\n", progname); |
152 |
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exit(1); |
153 |
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} |
154 |
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start = ftell(fp); |
155 |
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for (xoff = 0; xoff < xres; xoff += nrows) { |
156 |
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if (fseek(fp, start, 0) < 0) { |
157 |
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fprintf(stderr, "%s: seek error\n", progname); |
158 |
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exit(1); |
159 |
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} |
160 |
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for (iny = yres-1; iny >= 0; iny--) { |
161 |
greg |
1.5 |
if (freadcolrs(inln, xres, fp) < 0) { |
162 |
greg |
1.1 |
fprintf(stderr, "%s: read error\n", progname); |
163 |
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exit(1); |
164 |
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} |
165 |
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for (inx = 0; inx < nrows && xoff+inx < xres; inx++) |
166 |
gwlarson |
2.6 |
copycolr(scanbar[inx*yres+iny], |
167 |
|
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inln[xoff+inx]); |
168 |
greg |
1.1 |
} |
169 |
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for (inx = 0; inx < nrows && xoff+inx < xres; inx++) |
170 |
gwlarson |
2.5 |
if (fwritecolrs(scanbar+inx*yres, yres, stdout) < 0) { |
171 |
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fprintf(stderr, "%s: write error\n", progname); |
172 |
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exit(1); |
173 |
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} |
174 |
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} |
175 |
greg |
2.7 |
free((void *)inln); |
176 |
gwlarson |
2.5 |
} |
177 |
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178 |
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179 |
schorsch |
2.9 |
static void |
180 |
|
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rotateccw( /* rotate picture counter-clockwise */ |
181 |
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FILE *fp |
182 |
|
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) |
183 |
gwlarson |
2.5 |
{ |
184 |
|
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register COLR *inln; |
185 |
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register int xoff, inx, iny; |
186 |
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long start, ftell(); |
187 |
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188 |
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if ((inln = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
189 |
|
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fprintf(stderr, "%s: out of memory\n", progname); |
190 |
|
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exit(1); |
191 |
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} |
192 |
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start = ftell(fp); |
193 |
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for (xoff = xres-1; xoff >= 0; xoff -= nrows) { |
194 |
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if (fseek(fp, start, 0) < 0) { |
195 |
|
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fprintf(stderr, "%s: seek error\n", progname); |
196 |
|
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exit(1); |
197 |
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} |
198 |
|
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for (iny = 0; iny < yres; iny++) { |
199 |
|
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if (freadcolrs(inln, xres, fp) < 0) { |
200 |
|
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fprintf(stderr, "%s: read error\n", progname); |
201 |
|
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exit(1); |
202 |
|
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} |
203 |
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for (inx = 0; inx < nrows && xoff-inx >= 0; inx++) |
204 |
gwlarson |
2.6 |
copycolr(scanbar[inx*yres+iny], |
205 |
|
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inln[xoff-inx]); |
206 |
gwlarson |
2.5 |
} |
207 |
|
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for (inx = 0; inx < nrows && xoff-inx >= 0; inx++) |
208 |
greg |
1.1 |
if (fwritecolrs(scanbar+inx*yres, yres, stdout) < 0) { |
209 |
|
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fprintf(stderr, "%s: write error\n", progname); |
210 |
|
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exit(1); |
211 |
|
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} |
212 |
|
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} |
213 |
greg |
2.7 |
free((void *)inln); |
214 |
greg |
1.1 |
} |